Johannsen

Johannsen definition - medical

Jo·hann·sen (yō-hänˈsən), Wilhelm Ludwig 1857-1927.

Danish botanist and geneticist who was a pioneer in the field of experimental genetics.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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